The change of seasons affects the kinds of activities we do. Use these printable weather postcards to show how activities change with the seasons.

Help kids understand the size and scope of billions of years with this helpful reference worksheet.

Summer is full of sunshine! Dress this paper doll boy for warm weather with this fun sorting and categorizing activity.

One of the most famous and easy to spot constellations is the Big Dipper! Formally known as Ursa Major, this constellation was named after a bear.

Find out all about snow in this worksheet -- what it is, where it comes from and what it looks like.

What is a car made of? This worksheet asks you and your child to think about parts of a vehicle and where each listed resource was used.

Bet you've never seen Capricorn's symbol before -- it's a sea-goat!

This worksheet asks your kindergartener to circle all the articles of clothing that are best for cold weather.

How would you dress on a rainy day? Get your little weatherman familiar with different seasons with this fun paper doll!

Launch into learning with this worksheet on Gemini 4, one of the original missions in the early days of the U.S.'s space program.

Check out these printable weather postcards, which feature iconic images of each season. Print out these weather postcards for your kindergartener.

This is one angry looking constellation! Meet Taurus, one of the twelve constellations of the zodiac.

See the wind in action! Little scientists can make and decorate their very own windsocks to hang in the breeze, using this template.

Teach your child about prehistoric marine species with this trilobite coloring page!

Can you help Cornelius create a crazy compost concoction? Help your child review his knowledge of compost and recycling with this fun worksheet.

Our ecosystems need a protector; is your third grader up to the challenge? Identify harmful pollutants in a science worksheet that doubles as a coloring page.

Complete this simple and engaging exercise about the planet Mars by reading the information and labeling Mars' layers using what you've learned.

Here's a quick overview of drought and flooding to spark thoughts or conversation with your kids about water.

Does your little gardener know about compost? Quiz him on the basic elements of this excellent gardening tool.

Learn all about the cumulonimbus cloud, more commonly known by a much more fearsome name: the thundercloud!

What is a plateau? What's the difference between a butte and a mesa? Look at these three land forms and learn to tell them apart with this worksheet.

Fossils can tell us about life on earth, but they can also teach kids the scientific method.

Get to know each of the Seven Summits, then organize their heights into a graph.

Circle and color all the pieces that Jenny might need for a day of sun and sand.

This angelic constellation is Virgo, one of the twelve special symbols of the zodiac.

Trace the dotted lines to place these holiday icons in the correct seasons. When you're done, write the name of the season underneath the picture.

Kindergarteners learning about different seasons will like these colorful printable postcards. These weather postcards also offer writing practice.

This paper doll needs help dressing for the winter season! Can your child pick out the right outfit for her?

Get your kindergartener started on geography with a fun drawing activity! She'll learn a little about the anatomy of mountains as she draws.

Quite possibly the most famous constellation, the Big Dipper is a small part of Ursa Major, the big bear constellation.